diff --git a/.github/workflows/cleanup-self-hosted-runners.yml b/.github/workflows/cleanup-self-hosted-runners.yml
index 6ff45beb..320e1940 100644
--- a/.github/workflows/cleanup-self-hosted-runners.yml
+++ b/.github/workflows/cleanup-self-hosted-runners.yml
@@ -17,6 +17,7 @@ on:
 #                        group specifically for self-hosted Actions Runners.
 jobs:
   delete-runner:
+    if: github.repository_owner == 'git-for-windows'
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4